{"id":978071,"date":"2024-12-27T06:34:43","date_gmt":"2024-12-26T22:34:43","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/978071.html"},"modified":"2024-12-27T06:34:45","modified_gmt":"2024-12-26T22:34:45","slug":"python%e5%a6%82%e4%bd%95%e8%be%93%e5%87%ba%e6%95%b0%e7%bb%84%e5%85%83%e7%b4%a0","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/978071.html","title":{"rendered":"python\u5982\u4f55\u8f93\u51fa\u6570\u7ec4\u5143\u7d20"},"content":{"rendered":"<p style=\"text-align:center;\" ><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/24203223\/34f609eb-daf6-467e-9144-621a27e4708d.webp\" alt=\"python\u5982\u4f55\u8f93\u51fa\u6570\u7ec4\u5143\u7d20\" \/><\/p>\n<p><p> <strong>Python\u4e2d\u8f93\u51fa\u6570\u7ec4\u5143\u7d20\u7684\u65b9\u6cd5\u6709\u591a\u79cd\uff0c\u5305\u62ec\u76f4\u63a5\u8bbf\u95ee\u3001\u5faa\u73af\u904d\u5386\u3001\u4f7f\u7528\u5185\u7f6e\u51fd\u6570\u3001\u5217\u8868\u63a8\u5bfc\u5f0f\u7b49\u3002\u4f7f\u7528\u7d22\u5f15\u53ef\u4ee5\u76f4\u63a5\u8bbf\u95ee\u7279\u5b9a\u5143\u7d20\u3001\u5229\u7528for\u5faa\u73af\u53ef\u4ee5\u9010\u4e2a\u8f93\u51fa\u5143\u7d20\u3001\u901a\u8fc7\u5185\u7f6e\u51fd\u6570\u5982print()\u53ef\u4ee5\u8f93\u51fa\u6574\u4e2a\u6570\u7ec4\u3001\u5217\u8868\u63a8\u5bfc\u5f0f\u5219\u63d0\u4f9b\u4e86\u4e00\u79cd\u7b80\u6d01\u7684\u8f93\u51fa\u65b9\u5f0f\u3002<\/strong>\u5bf9\u4e8e\u521d\u5b66\u8005\u6765\u8bf4\uff0c\u5229\u7528\u5faa\u73af\u904d\u5386\u6570\u7ec4\u662f\u6700\u5e38\u89c1\u7684\u65b9\u6cd5\uff0c\u800c\u9ad8\u7ea7\u7528\u6237\u53ef\u80fd\u66f4\u503e\u5411\u4e8e\u4f7f\u7528\u5217\u8868\u63a8\u5bfc\u5f0f\u6765\u5b9e\u73b0\u66f4\u590d\u6742\u7684\u8f93\u51fa\u903b\u8f91\u3002<\/p>\n<\/p>\n<p><p>\u4e00\u3001\u76f4\u63a5\u8bbf\u95ee\u6570\u7ec4\u5143\u7d20<\/p>\n<\/p>\n<p><p>\u5728Python\u4e2d\uff0c\u6570\u7ec4\u901a\u5e38\u7528\u5217\u8868\uff08list\uff09\u6765\u8868\u793a\u3002\u8981\u8bbf\u95ee\u6570\u7ec4\u4e2d\u7684\u7279\u5b9a\u5143\u7d20\uff0c\u53ef\u4ee5\u4f7f\u7528\u7d22\u5f15\u3002\u4f8b\u5982\uff0c\u5982\u679c\u6709\u4e00\u4e2a\u6570\u7ec4<code>arr = [1, 2, 3, 4, 5]<\/code>\uff0c\u5219\u53ef\u4ee5\u901a\u8fc7<code>arr[0]<\/code>\u8bbf\u95ee\u7b2c\u4e00\u4e2a\u5143\u7d20\u3002\u503c\u5f97\u6ce8\u610f\u7684\u662f\uff0cPython\u7684\u7d22\u5f15\u662f\u4ece0\u5f00\u59cb\u7684\uff0c\u8fd9\u610f\u5473\u7740\u7b2c\u4e00\u4e2a\u5143\u7d20\u7684\u7d22\u5f15\u662f0\uff0c\u7b2c\u4e8c\u4e2a\u5143\u7d20\u7684\u7d22\u5f15\u662f1\uff0c\u4ee5\u6b64\u7c7b\u63a8\u3002<\/p>\n<\/p>\n<p><p>\u76f4\u63a5\u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\u7684\u4f18\u70b9\u662f\u7b80\u5355\u660e\u4e86\uff0c\u4f46\u5f53\u6570\u7ec4\u7684\u957f\u5ea6\u8f83\u5927\u65f6\uff0c\u9010\u4e00\u901a\u8fc7\u7d22\u5f15\u8bbf\u95ee\u6bcf\u4e2a\u5143\u7d20\u53ef\u80fd\u4f1a\u53d8\u5f97\u7e41\u7410\u3002\u56e0\u6b64\uff0c\u5728\u5904\u7406\u8f83\u957f\u7684\u6570\u7ec4\u65f6\uff0c\u901a\u5e38\u4f1a\u4f7f\u7528\u5faa\u73af\u6765\u904d\u5386\u6570\u7ec4\u3002<\/p>\n<\/p>\n<p><p>\u4e8c\u3001\u4f7f\u7528\u5faa\u73af\u904d\u5386\u6570\u7ec4<\/p>\n<\/p>\n<p><p>\u904d\u5386\u6570\u7ec4\u662f\u8f93\u51fa\u6570\u7ec4\u5143\u7d20\u7684\u5e38\u7528\u65b9\u6cd5\u4e4b\u4e00\u3002\u5728Python\u4e2d\uff0c\u6700\u5e38\u7528\u7684\u904d\u5386\u65b9\u6cd5\u662f\u4f7f\u7528<code>for<\/code>\u5faa\u73af\u3002\u901a\u8fc7<code>for<\/code>\u5faa\u73af\uff0c\u60a8\u53ef\u4ee5\u904d\u5386\u6570\u7ec4\u4e2d\u7684\u6bcf\u4e00\u4e2a\u5143\u7d20\uff0c\u5e76\u8fdb\u884c\u76f8\u5e94\u7684\u64cd\u4f5c\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">arr = [1, 2, 3, 4, 5]<\/p>\n<p>for element in arr:<\/p>\n<p>    print(element)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u4e0a\u8ff0\u4ee3\u7801\u5c06\u6570\u7ec4<code>arr<\/code>\u4e2d\u7684\u6bcf\u4e00\u4e2a\u5143\u7d20\u9010\u884c\u8f93\u51fa\u3002<code>for<\/code>\u5faa\u73af\u7684\u4f18\u70b9\u662f\u7b80\u6d01\u4e14\u6613\u4e8e\u7406\u89e3\uff0c\u9002\u7528\u4e8e\u5927\u591a\u6570\u60c5\u51b5\u4e0b\u7684\u6570\u7ec4\u904d\u5386\u3002\u7136\u800c\uff0c\u5f53\u9700\u8981\u540c\u65f6\u83b7\u53d6\u5143\u7d20\u7684\u7d22\u5f15\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528<code>enumerate()<\/code>\u51fd\u6570\u3002<code>enumerate()<\/code>\u51fd\u6570\u5c06\u6570\u7ec4\u7684\u5143\u7d20\u548c\u7d22\u5f15\u4e00\u8d77\u8fd4\u56de\uff0c\u65b9\u4fbf\u5728\u904d\u5386\u8fc7\u7a0b\u4e2d\u8bbf\u95ee\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">arr = [1, 2, 3, 4, 5]<\/p>\n<p>for index, element in enumerate(arr):<\/p>\n<p>    print(f&quot;Index: {index}, Element: {element}&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u4e09\u3001\u4f7f\u7528\u5185\u7f6e\u51fd\u6570\u8f93\u51fa\u6570\u7ec4<\/p>\n<\/p>\n<p><p>Python\u63d0\u4f9b\u4e86\u4e00\u4e9b\u5185\u7f6e\u51fd\u6570\uff0c\u53ef\u4ee5\u7528\u4e8e\u8f93\u51fa\u6570\u7ec4\u3002\u4f8b\u5982\uff0c<code>print()<\/code>\u51fd\u6570\u53ef\u4ee5\u7528\u4e8e\u8f93\u51fa\u6574\u4e2a\u6570\u7ec4\u3002\u867d\u7136<code>print()<\/code>\u51fd\u6570\u4f1a\u5c06\u6570\u7ec4\u663e\u793a\u4e3a\u5217\u8868\u7684\u5f62\u5f0f\uff0c\u4f46\u5b83\u662f\u8f93\u51fa\u6570\u7ec4\u7684\u6700\u7b80\u5355\u65b9\u6cd5\u4e4b\u4e00\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">arr = [1, 2, 3, 4, 5]<\/p>\n<p>print(arr)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u4e0a\u8ff0\u4ee3\u7801\u4f1a\u8f93\u51fa<code>[1, 2, 3, 4, 5]<\/code>\uff0c\u5373\u5c06\u6570\u7ec4\u7684\u6240\u6709\u5143\u7d20\u4ee5\u5217\u8868\u7684\u5f62\u5f0f\u6253\u5370\u5230\u63a7\u5236\u53f0\u3002<\/p>\n<\/p>\n<p><p>\u56db\u3001\u4f7f\u7528\u5217\u8868\u63a8\u5bfc\u5f0f<\/p>\n<\/p>\n<p><p>\u5217\u8868\u63a8\u5bfc\u5f0f\u662fPython\u7684\u4e00\u79cd\u7b80\u6d01\u8bed\u6cd5\uff0c\u5141\u8bb8\u7528\u6237\u5728\u4e00\u884c\u4ee3\u7801\u4e2d\u751f\u6210\u65b0\u7684\u5217\u8868\u3002\u4f7f\u7528\u5217\u8868\u63a8\u5bfc\u5f0f\u53ef\u4ee5\u9ad8\u6548\u5730\u8f93\u51fa\u6570\u7ec4\u5143\u7d20\uff0c\u5c24\u5176\u662f\u5728\u9700\u8981\u5bf9\u5143\u7d20\u8fdb\u884c\u67d0\u79cd\u8f6c\u6362\u6216\u8fc7\u6ee4\u65f6\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">arr = [1, 2, 3, 4, 5]<\/p>\n<p>squared = [x2 for x in arr]<\/p>\n<p>print(squared)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u5217\u8868\u63a8\u5bfc\u5f0f\u7528\u4e8e\u8ba1\u7b97\u6570\u7ec4\u4e2d\u6bcf\u4e2a\u5143\u7d20\u7684\u5e73\u65b9\uff0c\u7ed3\u679c\u5b58\u50a8\u5728<code>squared<\/code>\u6570\u7ec4\u4e2d\u5e76\u8f93\u51fa\u3002\u5217\u8868\u63a8\u5bfc\u5f0f\u63d0\u4f9b\u4e86\u4e00\u79cd\u4f18\u96c5\u7684\u65b9\u5f0f\u6765\u5904\u7406\u6570\u7ec4\u5143\u7d20\uff0c\u9002\u7528\u4e8e\u9700\u8981\u5bf9\u5143\u7d20\u8fdb\u884c\u7b80\u5355\u5904\u7406\u7684\u573a\u666f\u3002<\/p>\n<\/p>\n<p><p>\u4e94\u3001\u4f7f\u7528Numpy\u6570\u7ec4<\/p>\n<\/p>\n<p><p>\u5bf9\u4e8e\u9700\u8981\u5904\u7406\u591a\u7ef4\u6570\u7ec4\u6216\u8fdb\u884c\u590d\u6742\u6570\u503c\u8ba1\u7b97\u7684\u573a\u666f\uff0cPython\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684<code>Numpy<\/code>\u5e93\u3002<code>Numpy<\/code>\u7684\u6570\u7ec4\u529f\u80fd\u5f3a\u5927\u4e14\u9ad8\u6548\uff0c\u9002\u7528\u4e8e\u79d1\u5b66\u8ba1\u7b97\u548c\u6570\u636e\u5206\u6790\u3002<\/p>\n<\/p>\n<p><p>\u8981\u8f93\u51fa<code>Numpy<\/code>\u6570\u7ec4\u7684\u5143\u7d20\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e0e\u5217\u8868\u7c7b\u4f3c\u7684\u65b9\u6cd5\u3002\u9996\u5148\uff0c\u9700\u8981\u5b89\u88c5\u5e76\u5bfc\u5165<code>Numpy<\/code>\u5e93\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import numpy as np<\/p>\n<p>arr = np.array([1, 2, 3, 4, 5])<\/p>\n<p>print(arr)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u4f7f\u7528<code>Numpy<\/code>\u65f6\uff0c\u53ef\u4ee5\u5229\u7528\u5176\u9ad8\u7ea7\u7d22\u5f15\u548c\u5207\u7247\u529f\u80fd\u6765\u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\u3002<code>Numpy<\/code>\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u51fd\u6570\u548c\u65b9\u6cd5\uff0c\u80fd\u591f\u7b80\u5316\u6570\u7ec4\u64cd\u4f5c\u548c\u8f93\u51fa\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u4f7f\u7528<code>nditer()<\/code>\u8fed\u4ee3\u5668\u6765\u9ad8\u6548\u904d\u5386\u591a\u7ef4\u6570\u7ec4\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">arr = np.array([[1, 2, 3], [4, 5, 6]])<\/p>\n<p>for x in np.nditer(arr):<\/p>\n<p>    print(x)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u516d\u3001\u603b\u7ed3<\/p>\n<\/p>\n<p><p>Python\u63d0\u4f9b\u4e86\u591a\u79cd\u65b9\u6cd5\u6765\u8f93\u51fa\u6570\u7ec4\u5143\u7d20\uff0c\u4ece\u7b80\u5355\u7684\u7d22\u5f15\u8bbf\u95ee\u5230\u4f7f\u7528<code>Numpy<\/code>\u5e93\u8fdb\u884c\u590d\u6742\u64cd\u4f5c\uff0c\u6bcf\u79cd\u65b9\u6cd5\u90fd\u6709\u5176\u9002\u7528\u7684\u573a\u666f\u3002\u5bf9\u4e8e\u521d\u5b66\u8005\u6765\u8bf4\uff0c\u719f\u7ec3\u638c\u63e1\u57fa\u672c\u7684\u6570\u7ec4\u64cd\u4f5c\u548c\u8f93\u51fa\u65b9\u6cd5\u662f\u5b66\u4e60Python\u7f16\u7a0b\u7684\u91cd\u8981\u4e00\u6b65\u3002\u901a\u8fc7\u5b9e\u8df5\u548c\u63a2\u7d22\uff0c\u60a8\u53ef\u4ee5\u6839\u636e\u9700\u6c42\u9009\u62e9\u6700\u5408\u9002\u7684\u6570\u7ec4\u8f93\u51fa\u65b9\u5f0f\uff0c\u63d0\u9ad8\u4ee3\u7801\u7684\u6548\u7387\u548c\u53ef\u8bfb\u6027\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p> <strong>\u5982\u4f55\u5728Python\u4e2d\u6253\u5370\u6570\u7ec4\u7684\u6240\u6709\u5143\u7d20\uff1f<\/strong><br \/>\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528<code>print()<\/code>\u51fd\u6570\u7ed3\u5408\u5faa\u73af\u6765\u8f93\u51fa\u6570\u7ec4\u7684\u6240\u6709\u5143\u7d20\u3002\u6700\u5e38\u7528\u7684\u65b9\u6cd5\u662f\u4f7f\u7528<code>for<\/code>\u5faa\u73af\u904d\u5386\u6570\u7ec4\u3002\u4f8b\u5982\uff0c\u5982\u679c\u6570\u7ec4\u540d\u4e3a<code>arr<\/code>\uff0c\u53ef\u4ee5\u8fd9\u6837\u5199\uff1a  <\/p>\n<pre><code class=\"language-python\">arr = [1, 2, 3, 4, 5]\nfor element in arr:\n    print(element)\n<\/code><\/pre>\n<p>\u8fd9\u79cd\u65b9\u5f0f\u53ef\u4ee5\u9010\u4e2a\u8f93\u51fa\u6570\u7ec4\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\uff0c\u786e\u4fdd\u6e05\u6670\u53ef\u8bfb\u3002<\/p>\n<p><strong>\u5982\u4f55\u683c\u5f0f\u5316\u8f93\u51faPython\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\uff1f<\/strong><br \/>\u5982\u679c\u5e0c\u671b\u4ee5\u7279\u5b9a\u683c\u5f0f\u8f93\u51fa\u6570\u7ec4\u5143\u7d20\uff0c\u53ef\u4ee5\u4f7f\u7528\u5b57\u7b26\u4e32\u683c\u5f0f\u5316\u7684\u65b9\u6cd5\u3002\u4f8b\u5982\uff0c\u4f7f\u7528<code>join()<\/code>\u51fd\u6570\u53ef\u4ee5\u5c06\u6570\u7ec4\u5143\u7d20\u8fde\u63a5\u6210\u4e00\u4e2a\u5b57\u7b26\u4e32\uff0c\u9002\u5408\u4e8e\u9700\u8981\u7279\u5b9a\u5206\u9694\u7b26\u7684\u60c5\u51b5\uff1a  <\/p>\n<pre><code class=\"language-python\">arr = [&#39;apple&#39;, &#39;banana&#39;, &#39;cherry&#39;]\nprint(&#39;, &#39;.join(arr))\n<\/code><\/pre>\n<p>\u8fd9\u6837\uff0c\u8f93\u51fa\u5c06\u4f1a\u662f<code>apple, banana, cherry<\/code>\uff0c\u800c\u4e0d\u4ec5\u4ec5\u662f\u6bcf\u4e2a\u5143\u7d20\u5355\u72ec\u4e00\u884c\u3002<\/p>\n<p><strong>\u5982\u4f55\u8f93\u51faPython\u6570\u7ec4\u7684\u7d22\u5f15\u53ca\u5bf9\u5e94\u5143\u7d20\uff1f<\/strong><br \/>\u5728\u4e00\u4e9b\u60c5\u51b5\u4e0b\uff0c\u77e5\u9053\u5143\u7d20\u7684\u7d22\u5f15\u4f4d\u7f6e\u4e5f\u662f\u5f88\u91cd\u8981\u7684\u3002\u53ef\u4ee5\u4f7f\u7528<code>enumerate()<\/code>\u51fd\u6570\u6765\u540c\u65f6\u83b7\u53d6\u6570\u7ec4\u7684\u7d22\u5f15\u548c\u5143\u7d20\uff1a  <\/p>\n<pre><code class=\"language-python\">arr = [&#39;A&#39;, &#39;B&#39;, &#39;C&#39;]\nfor index, element in enumerate(arr):\n    print(f&#39;Index {index}: {element}&#39;)\n<\/code><\/pre>\n<p>\u8fd9\u79cd\u65b9\u6cd5\u5c06\u6e05\u6670\u5730\u5c55\u793a\u6bcf\u4e2a\u5143\u7d20\u53ca\u5176\u5bf9\u5e94\u7684\u7d22\u5f15\uff0c\u4fbf\u4e8e\u8c03\u8bd5\u548c\u6570\u636e\u5206\u6790\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"Python\u4e2d\u8f93\u51fa\u6570\u7ec4\u5143\u7d20\u7684\u65b9\u6cd5\u6709\u591a\u79cd\uff0c\u5305\u62ec\u76f4\u63a5\u8bbf\u95ee\u3001\u5faa\u73af\u904d\u5386\u3001\u4f7f\u7528\u5185\u7f6e\u51fd\u6570\u3001\u5217\u8868\u63a8\u5bfc\u5f0f\u7b49\u3002\u4f7f\u7528\u7d22\u5f15\u53ef\u4ee5\u76f4\u63a5\u8bbf [&hellip;]","protected":false},"author":3,"featured_media":978076,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/978071"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=978071"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/978071\/revisions"}],"predecessor-version":[{"id":978077,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/978071\/revisions\/978077"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/978076"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=978071"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=978071"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=978071"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}